quiz

5. The innermoonic germ layer that develops into the lining of the digestive and respiratory tracts.
7. The four basic tissue types that cover body surfaces, line cavities, and form glands are collectively called __________.
8. anything that occupies space and has mass
11. The connective tissue that stores fat and provides insulation for the body.
12. The outer embryonic germ layer that develops into the skin and nervous system.
13. The epithelial tissue classification characterized by flat, thin cells.
16. This type of tissue binds, supports, and protects the body's organs and tissues.
17. The middle embryonic germ layer that gives rise to muscles, bones, and connective tissues.
18. The connective tissue membrane found in movable joints.
19. A group of two or more atoms held together by chemical bonds.

1. The supporting cells of the nervous system that protect and nourish neurons.
2. A pure substance that cannot be broken down into simpler substances by ordinary chemical means.
3. The single cell formed by the fusion of a sperm and an egg.
4. The tissue responsible for voluntary movement and attached to bones.
6. The organelle responsible for producing most of the cell's ATP or energy.
9. A substance composed of two or more elements chemically combined.
10. The specialized cell that transmits nerve impulses throughout the body.
13. The connective tissue that provides support and serves as the framework of the body, including bone and cartilage.
14. The smallest unit of an element that retains its chemical properties.
15. The central organelle of the cell that contains genetic material (DNA).